AI Recommendation
Should you use Gemini 3.5 Flash?
Gemini 3.5 Flash is listed for chat workloads and supports a 1.0M context window.
Use it when Google Gemini's free tier is enough for evaluation, demos, or light production traffic.
Gemini 3.5 Flash Free API on Google Gemini
Free API VerifiedFast Gemini model balancing multimodal reasoning, tool use, and cost
Free APIOpenAI compatibleReasoningTool callingJSON modePDF inputText
API Details
Copy-ready connection details
Base URL
https://generativelanguage.googleapis.com/v1beta Model ID
gemini-3.5-flash API format Google Gemini native generateContent + OpenAI Chat Completions
Technical Details
Gemini 3.5 Flash specifications
Context window 1.0M
Max output 65K
Status Online
Family gemini-flash
Knowledge cutoff 2025-01
Released May 19, 2026
Last updated Aug 6, 2026
Free listing since May 19, 2026
Input text, image, video, audio, pdf
Output text
Capabilities reasoning, tool calling, structured output, file attachments, temperature control
External benchmark references
| Benchmark | Score | Metric | Date |
|---|---|---|---|
| Terminal-Bench | 76.2 | success rate | 2026-05-19 |
| SWE-Bench Pro | 55.1 | resolve rate | 2026-05-19 |
| MCP Atlas | 83.6 | success rate | 2026-05-19 |
| Toolathlon | 56.5 | success rate | 2026-05-19 |
Best for
- Chat
Strengths & Weaknesses
Strengths
- Long context window
- Reasoning mode listed
- Tool calling support
- Structured JSON output
Watch outs
- Free-tier rate limits apply
Benchmark Overview
Benchmark signals for Gemini 3.5 Flash
Intelligence General reasoning and instruction following
50.2/100 Coding Programming and code generation
70.1/100 Agentic Tool use and multi-step tasks
37.4/100 Speed Observed generation speed
169 tok/s Context Maximum listed context window
1.0M Pricing
Gemini 3.5 Flash pricing per 1M tokens
Input $1.5 per 1M tokens
Output $9 per 1M tokens
Free access Available Google Gemini
Rate limit 15 RPM, 1,500 RPD provider policy
Availability
Gemini 3.5 Flash availability by provider
We only found this gemini-3-5-flash listing on Google Gemini in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | Gemini 3.5 Flash | Free tier | 1.0M | Native | 15 RPM, 1,500 RPD |
Compare
Gemini 3.5 Flash alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| Gemini 3.6 Flash | Google Gemini | 1.0M | Free tier |
| Gemini 3.5 Flash-Lite | Google Gemini | 1.0M | Free tier |
| Gemini 3.1 Flash-Lite | Google Gemini | 1.0M | Free tier |
| Gemini 2.5 Flash | Google Gemini | 1.0M | Free tier |
| Gemini 2.5 Flash-Lite | Google Gemini | 1.0M | Free tier |
Typical Use Cases
Gemini 3.5 Flash use cases
Chat
Gemini 3.5 Flash is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
FAQ
Gemini 3.5 Flash free API FAQ
Is Gemini 3.5 Flash free to use?
Gemini 3.5 Flash is listed with free API access on Google Gemini, subject to the provider's quota and account policy.
What is the Gemini 3.5 Flash model ID?
The model ID shown in this catalog is gemini-3.5-flash.
What are the Gemini 3.5 Flash free tier rate limits on Google Gemini?
The listed free tier limit is 15 RPM, 1,500 RPD. Limits can change per account tier, so confirm against the provider dashboard.
What context window does Gemini 3.5 Flash support?
The listed context window is 1.0M tokens with up to 65K output tokens.
More about Gemini 3.5 Flash
Fast Gemini model balancing multimodal reasoning, tool use, and cost
For API keys, setup steps, and provider-level limits, see the Google Gemini provider page.